Compare two time in flutter - flutter

Question

I would like to compare last_uploaded_time with current time.
How to check whether the two time is more or less than one minute?
bool compareTime(String starts) {
print(starts);
var start = starts.split(":");
DateTime currentDateTime = DateTime.now();
String currentTime =
DateFormat(DateUtil.TIME_FORMAT).format(currentDateTime);
print(currentTime);
var end = currentTime.split(":");
DateTime initDateTime = DateTime(
currentDateTime.year, currentDateTime.month, currentDateTime.day);
var startDate = (initDateTime.add(Duration(hours: int.parse(start[0]))))
.add(Duration(minutes: int.parse(start[1])));
var endDate = (initDateTime.add(Duration(hours: int.parse(end[0]))))
.add(Duration(minutes: int.parse(end[1])));
if (currentDateTime.isBefore(endDate) &&
currentDateTime.isAfter(startDate)) {
print("CURRENT datetime is between START and END datetime");
return true;
} else {
print("NOT BETWEEN");
return false;
}
}
Output
I/flutter (12908): 01:16
I/flutter (12908): 01:40
I/flutter (12908): NOT BETWEEN

Answer 1

difference
not exactly working with minutes and seconds so you can use some custom algorithm like
import 'package:intl/intl.dart';
class IntelModel { static String timeSinceDate(DateTime date) {
final now = DateTime.now();
final difference = now.toLocal().difference(date.toLocal());
if ((now.day - date.day) >= 8) {
return 'A few weeks ago';
} else if ((now.day - date.day) >= 1) {
return '${(now.day - date.day)} days ago';
} else if (now.day == date.day) {
if (now.hour > date.hour) {
if ((now.hour - date.hour) >= 2) {
if (now.minute == date.minute) {
return '${(now.hour - date.hour)} hours ago';
} else {
var mins = now.minute - date.minute;
if (mins > 1) {
return '${(now.hour - date.hour)} h ${(now.minute - date.minute)} minutes ago';
} else {
return '${(now.hour - date.hour) - 1} h ${60 + mins} minutes ago';
}
}
} else if ((now.hour - date.hour) == 1) {
int timeMin = now.minute + (60 - date.minute);
if (timeMin == 60) {
return '1 hours ago';
} else if (timeMin >= 60) {
return '1 h ${timeMin - 60} mins ago';
} else {
return '$timeMin minutes ago';
}
}
} else if (now.hour == date.hour) {
if (now.minute > date.minute) {
return '${(now.minute - date.minute)} minutes ago';
} else if (date.minute == now.minute) {
return '${(now.second - date.second)} seconds ago';
}
}
} else {
return 'Error in time';
} } }

Answer 2

void main() {
String getDifference(DateTime date){
Duration duration = DateTime.now().difference(date);
String differenceInMinutes = (duration.inMinutes).toString();
return differenceInMinutes;
}
String str = getDifference(DateTime.parse('2021-09-24'));
print (str);
}
i tried above code on dartpad, you can use this to compare tow dateTime variables. As per above example, you can get more options to compare for eg duration.inDays,duration.inHours,duration.inSeconds etc.